// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_GFX_GEOMETRY_CUBIC_BEZIER_H_
#define UI_GFX_GEOMETRY_CUBIC_BEZIER_H_

#include "base/macros.h"
#include "ui/gfx/gfx_export.h"

namespace gfx {

class GFX_EXPORT CubicBezier {
public:
    CubicBezier(double x1, double y1, double x2, double y2);
    ~CubicBezier();

    // Returns an approximation of y at the given x.
    double Solve(double x) const;

    // Sets |min| and |max| to the bezier's minimum and maximium y values in the
    // interval [0, 1].
    void Range(double* min, double* max) const;

private:
    double x1_;
    double y1_;
    double x2_;
    double y2_;

    DISALLOW_ASSIGN(CubicBezier);
};

} // namespace gfx

#endif // UI_GFX_GEOMETRY_CUBIC_BEZIER_H_
